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Jiaxin Zheng

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Preprint Aug 2026

On a conjecture of Kolokolnikov on algebraic connectivity

For a graph $G$, let $\alpha(G)$ be the second smallest eigenvalue of the Laplacian matrix of $G$, also known as the algebraic connectivity. Algebraic connectivity plays an important role in characterizing the connectivity of graphs and convergence properties of networks. Kolokolnikov conjectured that among all graphs...

Cheng Chi, Junjie Wang, Jiaxin Zheng · 2 citations · ⚡1